CVE-2017-7725

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2017-04-13 · updated 2026-06-17
Weakness: CWE-79

Description

concrete5 8.1.0 places incorrect trust in the HTTP Host header during caching, if the administrator did not define a "canonical" URL on installation of concrete5 using the "Advanced Options" settings. Remote attackers can make a GET request with any domain name in the Host header; this is stored and allows for arbitrary domains to be set for certain links displayed to subsequent visitors, potentially an XSS vector.

Affected products

Concrete CMS: 8.1.0

References

http://hyp3rlinx.altervista.org/advisories/CONCRETE5-v8.1.0-HOST-HEADER-INJECTION.txt
http://www.securityfocus.com/bid/97649
https://hackerone.com/reports/148300
https://packetstormsecurity.com/files/142145/concrete5-8.1.0-Host-Header-Injection.html
https://www.exploit-db.com/exploits/41885/
http://hyp3rlinx.altervista.org/advisories/CONCRETE5-v8.1.0-HOST-HEADER-INJECTION.txt
http://www.securityfocus.com/bid/97649
https://hackerone.com/reports/148300
https://packetstormsecurity.com/files/142145/concrete5-8.1.0-Host-Header-Injection.html
https://www.exploit-db.com/exploits/41885/

Get alerted when CVE-2017-7725 or the next vulnerability affects your stack